KAJ04SGGT DIP Switch Equivalent & Substitute Parts

Part Overview

The KAJ04SGGT is a 4-position surface mount DIP switch manufactured by E-Switch, designed for low-current switching applications at 24VDC with a 25mA current rating. This component features a slide actuator with gold-plated copper alloy contacts and is housed in a polyphenylene sulfide (PPS) body. The KAJ04SGGT is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Circuit Configuration	SPST (Single Pole Single Throw)
Number of Positions	4
Current Rating	25mA
Voltage Rating	24VDC
Actuator Type	Slide (Standard)
Mounting Type	Surface Mount
Termination Style	Gull Wing
Pitch	0.100" (2.54mm)
Contact Material	Copper Alloy with Gold Finish
Body Material	Polyphenylene Sulfide (PPS)
Operating Temperature Range	-40°C ~ 85°C
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

The 1825006-7 manufactured by TE Connectivity ALCOSWITCH Switches qualifies as a direct substitute for the KAJ04SGGT based on matching electrical and mechanical parameters. Substitution is valid when the following criteria are met:

Identical circuit configuration (SPST)
Identical number of positions (4)
Identical current rating (25mA)
Identical voltage rating (24VDC)
Identical actuator type (Slide Standard)
Identical mounting type (Surface Mount)
Identical termination style (Gull Wing)
Identical pitch spacing (0.100" / 2.54mm)
Identical contact material and finish (Copper Alloy, Gold)
Identical body material (PPS)
Compatible operating temperature ranges
Equivalent RoHS and MSL compliance

Parameter Comparison

Parameter	KAJ04SGGT (E-Switch)	1825006-7 (TE Connectivity)	Compatibility
Circuit Configuration	SPST	SPST	Match
Number of Positions	4	4	Match
Current Rating	25mA	25mA	Match
Voltage Rating	24VDC	24VDC	Match
Actuator Type	Slide (Standard)	Slide (Standard)	Match
Actuator Level	Flush, Recessed	Flush, Recessed	Match
Mounting Type	Surface Mount	Surface Mount	Match
Termination Style	Gull Wing	Gull Wing	Match
Pitch	0.100" (2.54mm)	0.100" (2.54mm)	Match
Contact Material	Copper Alloy	Copper Alloy	Match
Contact Finish	Gold	Gold	Match
Body Material	Polyphenylene Sulfide (PPS)	Polyphenylene Sulfide (PPS)	Match
Height Above Board	0.140" (4.65mm)	0.114" (2.90mm)	Compatible
Length	0.400" (10.16mm)	0.394" (10.01mm)	Compatible
Operating Temperature	-40°C ~ 85°C	-30°C ~ 85°C	Compatible
Mechanical Life	2,000 Cycles	1,000 Cycles	Compatible
Electrical Life	2,000 Cycles	1,000 Cycles	Compatible
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Match
MSL Rating	1 (Unlimited)	1 (Unlimited)	Match
REACH Status	REACH Unaffected	REACH Unaffected	Match

Engineering Selection Recommendations

The 1825006-7 is a direct functional equivalent for the obsolete KAJ04SGGT. Both components meet ROHS3 compliance and carry MSL Level 1 ratings, ensuring compatibility with standard manufacturing and storage protocols. The 1825006-7 is currently in active production status with substantial inventory availability (12,309 units), providing supply chain continuity for applications previously using the KAJ04SGGT.

Minor dimensional variations exist: the 1825006-7 is slightly shorter (0.114" vs. 0.140" height) and marginally shorter in length (0.394" vs. 0.400"), which are within typical PCB layout tolerances for surface mount applications. The operating temperature range of the 1825006-7 (-30°C ~ 85°C) is narrower than the KAJ04SGGT (-40°C ~ 85°C); applications requiring operation below -30°C require design review.

The 1825006-7 specifies 1,000 mechanical and electrical cycles compared to 2,000 cycles for the KAJ04SGGT. Applications with high cycle count requirements should evaluate this parameter against actual usage patterns.

Frequently Asked Questions (FAQ)

Q: Can the 1825006-7 be used as a direct replacement for the KAJ04SGGT on existing PCBs?

A: Yes. Both components share identical electrical ratings (SPST, 4-position, 25mA, 24VDC), actuator type (slide standard), mounting configuration (surface mount, gull wing termination), and pitch spacing (0.100"). Dimensional differences are minor and within standard PCB layout tolerances.

Q: What are the key differences between these two parts?

A: The primary differences are: (1) Height above board: KAJ04SGGT is 0.140" versus 1825006-7 at 0.114"; (2) Operating temperature minimum: KAJ04SGGT operates to -40°C while 1825006-7 operates to -30°C; (3) Mechanical and electrical life: KAJ04SGGT rated for 2,000 cycles versus 1,000 cycles for 1825006-7; (4) Product status: KAJ04SGGT is obsolete while 1825006-7 is active production.

Q: Does the height difference affect PCB layout?

A: The 1825006-7 is 0.026" (0.65mm) shorter than the KAJ04SGGT. This difference is negligible for most applications and does not require PCB redesign. Verify clearance in applications with height-constrained enclosures.

Q: Are both parts RoHS compliant?

A: Yes. Both the KAJ04SGGT and 1825006-7 are ROHS3 compliant and carry MSL Level 1 ratings, meeting standard environmental and handling requirements.

Q: What is the packaging format for the 1825006-7?

A: The 1825006-7 is supplied in tube packaging, suitable for automated pick-and-place assembly processes.

Q: Can I use the 1825006-7 in applications requiring operation below -30°C?

A: No. The 1825006-7 operating temperature range begins at -30°C. Applications requiring operation at -40°C must retain the KAJ04SGGT or identify alternative components with extended low-temperature ratings.

Q: How do the cycle life ratings compare?

A: The KAJ04SGGT is rated for 2,000 mechanical and electrical cycles, while the 1825006-7 is rated for 1,000 cycles. For applications with cycle counts approaching or exceeding 1,000 cycles, evaluate actual usage patterns to confirm the 1825006-7 meets reliability requirements.

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